
Nova v2.1 API is used in Cinder over 1 year since the commit Iadd3363265be6c5a8ed46704a712da6c15e2b046 and Nova v2.1 API has been available since Kilo. So it seems unnecessary to make the used Nova API version configuable. Change-Id: Ib76b52199ee23997cd54eadbc27b13d46eb4a3f8